Richey's guide and assistant for carpenters and mechanics : a work of practical information, giving almost every geometrical and practical problem likely to arise in the work of the carpenter, and quick and easy methods for their solution : the use of the steel square, etc., tables showing strength and weight of materials, methods of framing, useful recipes, etc., etc. (1894)
Richey, H. G. (Harry Grant), b. 1868 · New York : W.T. Comstock · leaf 84
FOR CARPENTERS AND MECHANICS. 17 96—Lancet Gothic Arch.—A lancet Gothic arch isone whose radius is greater than its width, as shown inFig. 103. j^^- f.6»:r_. … 97—To Draw the Gothic Elliptical Arch.—Divide the span a b into three equal parts at c and d, Fig. 104; with ^ ^ as radius and a,c, d, b as centres draw thearcs, as shown, findingpoints e and f; now,from e and f draw linesthrough c and d, as shown;with c and d as centresand a c 2is radius drawarcs…
Carpentry
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